package com.by.common.curd;

import cn.hutool.core.map.MapUtil;
import com.by.common.bean.PageBean;
import com.github.pagehelper.PageHelper;
import com.github.pagehelper.PageInfo;
import org.springframework.beans.factory.annotation.Autowired;

import java.io.Serializable;
import java.util.*;

public class BaseServiceImpl<T,M extends BaseMapper> implements BaseService<T>{
    @Autowired(required = false)
      protected M baseMapper;
    @Override
    public PageBean query(Map map){
        /*int page=Integer.parseInt(map.get("page").toString());
        int pageSize=Integer.parseInt(map.get("pageSize").toString());*/

        int page = MapUtil.getInt(map,"page");
        int pageSize = MapUtil.getInt(map,"pageSize");
        //设置分页
        PageHelper.startPage(page,pageSize);//后面紧跟查询
        List<Map> list = baseMapper.query(map);

        //获取分页信息 将查询结果封装一下
        PageInfo info=new PageInfo(list);

        return new PageBean(page,pageSize,info.getTotal(),list);
    }

    @Override
    public int save(T entity){
        return baseMapper.save(entity);
    }
    @Override
    public int update(T entity) {
        return baseMapper.update(entity);
    }

    @Override
    public int delete(Serializable id) {
        return baseMapper.delete(id);
    }

    @Override
    public T get(Serializable id) {
        return (T) baseMapper.get(id);
    }

}
